Gearing



No. 751,588. PATENTED FEB. 9, 1904.

G. WESTINGHOUSE.

GEARING.

APPLICATION FILED APR. 29, 1897.

N0 MODEL. 3 SHEETS-SHEET 1.

PIC-Ll.

inn-misses mvsm'on No. 751,588. PATENTED FEB. 9, 1904. G. WESTINGHOUSE.

GEARING.

I APPLICATION FILED APR29, 1897. 10 MODEL. 3 SHEBTSTSHEBT 2.

PIC-I12.

WiTNESSES IN'VENTOR PATENTED FEB. 9, 1904.

G. WESTINGHOUSE.

GEARING.

APPLICATION FILED APR. 29, 1897.

3 SHEETS-SHEET 3.

gmhhh\ N0 MODEL.

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WITNESSES UNITED STATES Patented February 9, 1904.

PATENT OEEIcE.

GEARING.

SPECIFICATION forming part of Letters Patent No. 7 51,588, datedFebruary 9, 1904.

Application filed April 29, 1897. Serial No. 634,468. (No model.)

To all whom it may concern:

Be it known that I, GEORGE IVEs'rINGHoIIsE, a citizen of the UnitedStates, residing at Pittsburg, in the county of Allegheny and State ofPennsylvania, have invented or discovered a certain new and usefulImprovement in Gearing, of which improvement the following is aspecification.

The object of my invention is to provide an improvement inmotion-transmitting gearing; and to this end it consists of means foradjustably supporting the rotating member of a motor and its shaft insuch manner as to permit the rotation of these parts at a very highvelocity with a minimum of friction and with a capability of adjustmentwhich is essential at such very high velocities and also to adapt saidrotating member and its shaft to be connected for operation with otherparts operating at a lower velocity.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings, which illustrate an application of myinvention, Figure 1 is a side elevation of amotor embodying myimprovement; Fig. 2, avertical longitudinal section through the same;Fig. 3, a section on the line .71 of Fig. 2, and Fig. 4 a section on theline y y of Fig. 2.

In the construction shown in the. drawings the casing of the motor ismade in two parts 1 and 2, secured together and inclosing a centralchamber, in which the rotating member or disk 5 is fitted. The disk 5 ismounted on a shaft 6, with a yielding connection between the shaft anddisk, and the shaft 6 passes through openings in the casing on each sideof the disk, which openings, as shown in the drawings, are provided withtubular bushings 12. The shaft 6 projects at each end beyond the bushing12 and is connected at one end to a shaft 13, which has a socket 14formed in one end to receive the end of the shaft 6. The two shafts 6and 13 may be connected so as to turn together by means of a spline, asshown, or in any other suitable manner.

The shaft 13 carries a pinion 15, the teeth of which engage with theteeth on three gearwheels 16, 1 7, and 18, which are placed at equaldistances apart around the pinion 15 and which operate as planet-wheels.These three gear-wheels are journaled to rotate on pins 23, 24, and 25,fixed at one end on a disk 19, mounted on the end of a shaft 20, andfitting at their opposite ends in a ring 17, which rotates on a hub orhearing as, formed on the head 32, and their teeth engage with the teethformed on a stationary ring 21, fitted inside of the stationary casing22, the whole forming an epicyclic gear.

On each side of the teeth formed on the wheels 16, 17, and 18 and on thepinion 15 the rims of these wheels and the shaft 13 are provided withcylindrical surfaces without teeth, and the diameter of thesecylindrical portions is equal to the diameter of the pitchcircles of thetoothed portions, so that these cylindrical portions 26, 27, and 28 onthe wheels engage with the cylindrical portions 29 on the shaft 13. Oneach side of the toothed ring 21 a tapered ring 30 is fitted in thecasing 22 and is provided with cylindrical surfaces 31 the diameter ofthe pitch-circle of the teeth on the ring 21, so that the cylindricalsurfaces 26, 27, and 28 on the wheels 16, 17, and 18 may engage with androll on the surfaces 31. The rings 30 may be cut or split diagonally inthe manner of the packingring of a piston to permit of adjustment byforcing the rings into the tapered portion of the casing. Thecylindrical casing 22 is provided with bonnets or heads 32 and 33,having extensions 34 and 35, provided with openings through which theshafts 6, 13, and extend. It will be seen that by means of thisconstruction the shaft 6 is connected with the shaft 20 by means of anepicyclic reducinggear, which will operate to convert the high speed ofthe shaft 6 into a lower speed at the shaft 20, where it may be utilizedto operate a machine or mechanism, and the cylindrical surfaces 26, 27,and 28 of the wheels 16, 17, and 18, rolling on the cylindrical surfaces31 of the rings and engaging with the cylindrical surfaces on the shaft13, form a rollerbearing for the shafts 13 and 6.

The opposite end of the shaft 6 extends into a casing 39 and engageswith three rollers or wheels without teeth 36, 37, and 38, which arejournaled, by means of pins 42, 43, and 4 1,

on a disk and engage with and roll on a tapered ring 41, fitted in thecasing 89. The disk 40 is secured to a cylindrical extension 49, whichrotates therewith at a lower speed than the shaft 6 and which may beutilized in the same manner as the shaft 20 to operate other movingparts of machinery. In the construction shown the part 40 forms arotating part of a governor for controlling the speed of the motor.

A collar 7, which may be shrunk on or otherwise fixed to the shaft 6 orformed integral therewith, has a reduced portion or hub 45, formed onone end, which extends through the central opening in the disk 5, and acollar 8 is clamped in place by a nut 9 against the end of the hub onthe collar 7. The central portion of the disk 5 is reduced to athickness which is somewhat less than the length of the hub on thecollar 7, so that the circular groove into which the disk is fittedbetween the collar 8 and the shoulder on the collar '7 is large enoughto permit a slight lateral movement of the disk, and the central openingthrough the disk is sufliciently larger than the hub on the collar 7 topermit a slight movement of the disk transversely to the shaft.

A series of steel pins 46 are tightly fitted in the disk 5 at equaldistances apart around the shaft 6 and project into tapered openings inthe collar 7. These pins may fit neatly in the small ends of the taperedopenings when their other ends are fitted tightly in the disk, or, ifpreferred, one end of the pins may be movably fitted in the disk and theopposite ends tightly fitted in the outer ends of the tapered openingsin the collar. The pins 46 form a spring connection between the disk andthe shaft, which permits a slightlateral movement of the disk and alsopermits transverse movement relatively to the shaft. The shaft 6 isloosely fitted in the bushing 12 Without bearing thereon or beingsupported thereby and is supported entirely by the roller-bearing ateach end. omitted, if desired.

The rims of the wheels 36, 37, and 38 and of the wheels 16, 17, and 18may be made sufficiently thin to make them somewhat flexible, so as topermit them to yield slightly to lateral displacement of the shaft or toany slight movement of the shaft out of line.

It will be seen that with my construction not only the disk 5 and shaft6 are supported in roller-bearings, but also the shaft 20 and thecylindrical extension 49, and therefore these members 20 and 49 need notbe supported by bearings outside of the disks l9 and 10.

I claim as my invention and desire to secure by Letters Patent 1. Thecombination with a motor-shaft, of a combined roller-bearing andspeed-changing gearing for supporting the shaft and transmitting itsmotion to a machine or mechanism.

2. The combination with a motor-shaft, of a combined flexibleroller-bearing and speedchanging gearing for supporting the shaft andtransmitting its motion to a machine or mechanism.

3. The combination with a motor-shaft, of a driven shaft, and a combinedroller-bearing and gear mechanism for transmitting motion from thedriving to the driven shaft and for supporting both shafts.

4. The combination with a motor-shaft, of a driven shaft and anepicyclic gear connecting the shafts and forming a combined bearing andtransmission device.

5. The combination with a motor-shaft, of a power-transmitting shaft anda combined speed-changing gearing and roller-bearing for connecting andsupporting both shafts.

Irci1 testimony whereof I have 11 ereunto set my han GEO. WESTINGHOUSE.

Witnesses:

J. SNowDEN BELL, E. WV. NEWELL.

The bushings 12 may therefore be

